Database Users

Help: fastboot secure booting error

evidently I've screwed up something on my vs980. When I try to boot to recovery I get a fastboot screen with "secure booting error Cause: boot certification verify.
A little background:
I had been running Optimus g3 then flashed xdabbeb 982.5 (following all steps).
After that I thought I'd give AICP a try. after flashing the radio all was good.
I think this is where things got bad: I flashed 24a radio and restored an optimus backup, saved some stuff then restored xdabbeb 982.5. At this point I got a bootloop and dirty flashed 982.5 on top of the backup - problem solved.... until yesterday when I tried to boot to recovery and got the error.
My phone is working fine but I cant get to recovery.
Anybody got ideas?

hmm dunno..maybe try flash a recovery again? or push from adb recovery files dunno... you can even try use autorec app again to flash a recovery Oo maybe this works and after you can get in recovery
so you can try auto rec in order to flash recovery again .
you can enter download mode and go back to stock with kdz
or hmm you can use fastboot if you know how to push files etc etc
http://forum.xda-developers.com/showthread.php?t=2477595
http://forum.xda-developers.com/showthread.php?t=2277112
http://forum.xda-developers.com/showthread.php?t=2317790
lots of reading.. but if you have download mode then kdz back to stock will work for sure... thats why im scared to change baseband....many strage things can happen /scared..well gl .its not brick so you will get it back working soon)

D800 no recovery, boot certification verify

So I tried flashing CM13 via TWRP and I did, but whenever I try to access the recovery it just shows the LG logo and the boot certification error. When I try to install a recovery via Autorec it shows an error when installing the loki tool, so I don't know what to do. Any help? CM13 works fine and I can boot to it, but I'm wondering how I can access my recovery again. Thanks

failed1234 said:
So I tried flashing CM13 via TWRP and I did, but whenever I try to access the recovery it just shows the LG logo and the boot certification error. When I try to install a recovery via Autorec it shows an error when installing the loki tool, so I don't know what to do. Any help? CM13 works fine and I can boot to it, but I'm wondering how I can access my recovery again. Thanks
Click to expand...
Click to collapse
well my way was to fgo back to KK using flash tools. is it boots try using flashify.. if it boots into system.

d801 boots to cm13 but no recovery and no download mode.

I flashed to cm13 nightly 20160302 and my phone boots to cm with no problem but now I am unable to boot into recovery through any method with twrp 3.0.0.4 or any twrp version I tried inside of twrp manager or flashify, I am put into fastboot mode when trying to enter recovery with 3.0.0.4 and a few other I tried while other versions give me unsecured boot message. When trying to go into download mode I get the first download mode screen and then the screen goes blank and brings up 15 system partitions on my pc with only one partition containing a folder called image with a bunch of files. The phone is detectable through adb and as a storage device on my pc while booted into cm and while in fastboot mode the phone shows up as marshal london device- marshal london bootloader interface in device manager with no storage.
I planned on going to cloudyg2 but now I'm thinking about just going back to stock, would I be able to use the lg flash tool to get back to stock? Or possibly use adb recover to stock or use adb sideload to flash the default lg rom?

hevydevy said:
I flashed to cm13 nightly 20160302 and my phone boots to cm with no problem but now I am unable to boot into recovery through any method with twrp 3.0.0.4 or any twrp version I tried inside of twrp manager or flashify, I am put into fastboot mode when trying to enter recovery with 3.0.0.4 and a few other I tried while other versions give me unsecured boot message. When trying to go into download mode I get the first download mode screen and then the screen goes blank and brings up 15 system partitions on my pc with only one partition containing a folder called image with a bunch of files. The phone is detectable through adb and as a storage device on my pc while booted into cm and while in fastboot mode the phone shows up as marshal london device- marshal london bootloader interface in device manager with no storage.
I planned on going to cloudyg2 but now I'm thinking about just going back to stock, would I be able to use the lg flash tool to get back to stock? Or possibly use adb recover to stock or use adb sideload to flash the default lg rom?
Click to expand...
Click to collapse
I have the same problem. Any solution found?

stormrider2230 said:
I have the same problem. Any solution found?
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Click to collapse
if you can enter download mode. press vol up and connect usb.. then just go back to stock.. or see if srk tools would help..

Strangely bricked D802

So, I did brick my D802 in some way.
After a long history from cloudy g2-g3, rr, cm12, cm13, lineage 14.1, I clicked by mistake on the OTA of the lineage.
I thought I could stop the update once in the recovery, but I got stucked in the recovery bootloop. I got rid of it via recovery terminal, but system didn't boot. I tried reflashing lineage, nothing happened, I tried restoring a cm13 full backup, nothing happened, so I got back in download mode to restock with lollipop kdz (the one I used every time I restocked to change rom). It did not work, and I had to download a different KDZ to get to stock again.
Now, all the methods always used to root + recovery didn't work, so I manually rooted, installed the proper AUTOREC, but it didn't work (as I understand after hours of searching because supersu had updated himself in the meantime).
So I tried to install the TWRP image using flashify, it didn't work and corrupted something in my recovery. So i tried to unroot everything and reinstall the original root + supersu without letting him autoupdate. Not working.
Well, now I can boot and I can get in original lollipop rom, but I have no recovery and download mode appears but doesn't work anymore (once I had 3 COM ports when connected in download mode, now I can see only one; kdz flash does not sense the phone connected). When I try to open recovery I got the error "boot certification verify, secureboot error" in the top left corner of the screen, then a white page opens with the message "critical error" "demigod crash handler", volume up to download mode (that opens but does not work), volume down to reboot.
Now, I am stucked, I cannot find any suggestion of what to do to get the recovery working or to get the download mode working again.
Any help will be highly appreciated.
Thank you very much guys.

Not sure will it help but you may give it a try:
https://forum.xda-developers.com/lg-g2/development/tools-srk-tool-useful-toos-lg-root-twrp-t3079076

SM-T580 Softbricked, Currently on reboot loop, can't flash any stock firmware

Here's what happened:
1. flashed wrong twrp version for 8.1 oreo, used correct CF-auto root
- tablet booted to stock recovery screen a few times but i figured it was part of the process so I just rebooted
-ended up getting a failed identification verification
-i know the auto root worked because my warranty is void :silly:
2. reset my tablet from the failed verification screen
-eventually got myself to a blue erasing screen loop
-flashed twrp again and got myself to a point where booting into recovery resulted in glitchy lines
3. attempted to factory reset from reboot with adp
-not sure if it worked tbh
-also tried to reboot to recovery screen and that didn't really do anything
4. found and installed the proper version of twrp (3.2.3-4)
-now stuck in feedback loop that occasionally shows the twerp screen so i know something's right
-won't boot to recovery screen but will boot to download page
-doesn't show up in adp devices during this loop
-- have CONTINUOUSLY tried flashing firmware (I've tried 6.0, 7.0?, and 8.1) none of them have worked, sporting some variant of secure check fail (PIT, bootloader, or RADIO)
-- have tried the mod here but it fails after param.bin and i can't use it directly after auto root without rebooting because it gets stuck on setup connection
-- most likely not a hardware problem because i had this tablet for basically a day before i did this to myself
--OEM is unlocked, not that i could change it even if it wasn't
---is there anything that anyone would recommend trying before i take this to geek squad (who may not help me but i'm still going to try) or should i just cry myself to sleep over wasting $300 :crying::crying:

abstractartemis said:
Here's what happened:
1. flashed wrong twrp version for 8.1 oreo, used correct CF-auto root
- tablet booted to stock recovery screen a few times but i figured it was part of the process so I just rebooted
-ended up getting a failed identification verification
-i know the auto root worked because my warranty is void :silly:
2. reset my tablet from the failed verification screen
-eventually got myself to a blue erasing screen loop
-flashed twrp again and got myself to a point where booting into recovery resulted in glitchy lines
3. attempted to factory reset from reboot with adp
-not sure if it worked tbh
-also tried to reboot to recovery screen and that didn't really do anything
4. found and installed the proper version of twrp (3.2.3-4)
-now stuck in feedback loop that occasionally shows the twerp screen so i know something's right
-won't boot to recovery screen but will boot to download page
-doesn't show up in adp devices during this loop
-- have CONTINUOUSLY tried flashing firmware (I've tried 6.0, 7.0?, and 8.1) none of them have worked, sporting some variant of secure check fail (PIT, bootloader, or RADIO)
-- have tried the mod here but it fails after param.bin and i can't use it directly after auto root without rebooting because it gets stuck on setup connection
-- most likely not a hardware problem because i had this tablet for basically a day before i did this to myself
--OEM is unlocked, not that i could change it even if it wasn't
---is there anything that anyone would recommend trying before i take this to geek squad (who may not help me but i'm still going to try) or should i just cry myself to sleep over wasting $300 :crying::crying:
Click to expand...
Click to collapse
Flash twrp, FORMAT (not wipe) data, install Magisk.
Reboot.

ashyx said:
Flash twrp, FORMAT (not wipe) data, install Magisk.
Reboot.
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Click to collapse
So just keep flashing it until i can boot to twrp recovery basically?

abstractartemis said:
So just keep flashing it until i can boot to twrp recovery basically?
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Click to collapse
What's stopping you boot to Download mode?

ashyx said:
What's stopping you boot to Download mode?
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Click to collapse
I can boot to download mode but i can't boot to recovery mode after flashing twrp. When I try I just get stuck in a reboot loop, so I can't try to boot to recovery from adp either.

abstractartemis said:
I can boot to download mode but i can't boot to recovery mode after flashing twrp. When I try I just get stuck in a reboot loop, so I can't try to boot to recovery from adp either.
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Click to collapse
If you can flash twrp then not booting to twrp must be pilot error.
It MUST be done immediately after flashing in odin.